<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>3_类中的方法this指向</title>
</head>
<body>
  <script type="text/javascript">
    class Parson{
      constructor (name, age){
        this.name = name
        this.age = age
      }
    }
  </script>
</body>
</html>